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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Index Copernicus ICV 2017: 100.00
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Int.J.Curr.Microbiol.App.Sci.2018.7(10): 330-338
DOI: https://doi.org/10.20546/ijcmas.2018.710.035


An In vitro Dose Optimization of Exogenous Fibrolytic Enzymes in Total Mixed Ration for Crossbred Cows
P.M. Lunagariya1*, S.V. Shah1, B.R. Devalia2, A.C. Patel3 and P.R. Pandya2
1Livestock research Station
2Department of Animal Nutrition Research
3Department of Animal Genetics & Breeding, College of Veterinary Science & Animal Husbandry, Anand Agricultural University, Anand, Gujarat, India
*Corresponding author
Abstract:

An experiment was conducted to evaluate the levels of exogenous fibrolytic enzymes (EFE) on in vitro digestibility of dry matter (DM) and organic matter (OM), net gas production (NGP), metabolizable energy (ME) content, microbial biomass production (MBP) and efficiency of microbial biomass production (EMP). The total mixed ration (TMR) was prepared using sorghum hay and groundnut straw and compound concentrate mixture @ 30, 30 and 40%, respectively, to meet nutrient requirement of cow (500 kg) producing 12 kg fat corrected milk. The cellulase and xylanase was incorporated @ 0+0, 1000+2000, 1000+3000, 1000+4000, 2000+4000, 2000+6000, 2000+8000, 3000+6000, 3000+9000, 3000+12000, 4000+8000, 4000+12000, 4000+16000, 5000+10000, 5000+15000, 5000+20000, 6000+12000, 6000+18000 and 6000+24000 IU/kg TMR. The TMR with different levels of cellulase and xylanase were in vitro incubated to ascertain their effect on digestibility, gas production, and nutritive values. The significantly (p<0.05) higher and optimum in vitro digestibility of DM (66.243%) and OM (66.56%), NGP (76.48 ml/500 mg TMR) and ME (7.41 MJ/kg DM) were observed at 3000+12000 cellulase and xylanase IU/kg TMR supplementation, whereas MBP (146.73 mg/500 mg TMR) and EMP (44.02) were significantly (p<0.05) higher and optimum at C4X12 and C5X15 TMR, respectively. The MBP (145.86 mg/500 mg TMR) and EMP (43.83) also better at C3X12 TMR. The levels of cellulase 3000 + xylanase 12000 IU/kg TMR were found suitable for further in vivo study in crossbred cows.


Keywords: Exogenous fibrolytic enzymes, in vitro digestibility, Metabolizable energy, Microbial biomass production, Total gas production
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How to cite this article:

Lunagariya, P.M., S.V. Shah, B.R. Devalia, A.C. Patel and Pandya, P.R. 2018. An In vitro Dose Optimization of Exogenous Fibrolytic Enzymes in Total Mixed Ration for Crossbred Cows.Int.J.Curr.Microbiol.App.Sci. 7(10): 330-338. doi: https://doi.org/10.20546/ijcmas.2018.710.035